Improvement in steam generators



`@uitrit faire ige-trat @frn GARDNER vSYhiMlilS AND TIMOTHY W. HAYES, OFBROOKLYN, NEW YORK.

Letters Patent No. 64,593, dated lMay 7, 1867; antecateal April 26,M367. I

IMPROVEMENT IN STEAM GENERATORS.

TO ALL WHOM IT MAY CONOERN: l

Be it known that` we, GARDNER SYMMES and T. W. HAYES, both of Brooklyn,in the county of Kings, and State of New York, have invented a certainnew and useful Improvement in Steam Boilers, of which the following is afull, clear, and exact description, reference being had to theaccompanying drawing, which forms part of this specification, and inwhich- Figure 1 is a vertical section of a steam boiler constructedaccording to our improvement.

FigurejZ, an inverted transverse section thereof, taken as denoted bythe lines rv :u Yin fig. 1; and

Figure 3, a transverse section through the line e z in tig. l.

Like letters refer to like parts in all the figures.

Our improvement has reference 'to that description of steam boilerswhich are constructed, for at least a portion of their length or height,of a water-jacket or shell, while their interior has arranged within, soas to intercept the iire and heated gases in their passage to thesmoke-stack, a series of water vessels-or chambers, preferably made ofcast iron, and constituting of themselves, though acting in concert withthe surrounding jacket and body generally of the boiler, separate anddistinct steamgenerators; and our invention consists, firstly, in theuse within thelire-box of a series of inverted cones, preferably made ofcast iron, to act as steam generators; and, secondly, in the use of suchcones or other suitable generators within the tire-chamber, separately,united with the water-jacket by pipes arranged to pass through saidjacketand connected with it near the bottom, while they are made tocommunicate with the water and steam-space above or beyond them by pipespassing through the crown-sheet of the fire-box. v

For the information of otherswhom it may concern, we will now proceed todescribe our invention with reference to the accompanying drawing, whichrepresents a vertical steam boiler constructed according to ourimprovement, applicable to stationary work, but which may be modifiedfor locomotive or other purposes, and still be within the limits of ourimprovement. i

In said drawing, a represents the outer and b the inner shell,constituting a water-jacket, A., surrounding the {ire-chamber B, towhich c is the grate, 0l the crown-sheet, and C the smoke-stack run upthrough the steam and water-space D, above, which latter is or may beformed by capping or covering an extensionof the outer shell a. Withinthe hre-chamber B, at a suitable height above the grate, and below thecrown-sheet, is arranged a series, Aor it may be two or more series, oneabove the level of the other, of inverted hollow cast-iron cones orgenerators, suiliciently close to intercept the tire and heated gasesin' their passage tothe smoke-stack without destroying the draught.`These cones are separate and detached, and are connected at their bottomwith the lower portion -ot' the water-jacket A by elbow-formed pipes Farranged to pass through sleeves or connectingpipes e in said jacket,and dipping downwards outside the shell a, while such cones areconnected at their top f with the steam and water-chamber D by verticalor other pipes G passing upwards through the crown-sheet d,

and which may either terminate below the water line in said chamber, orin the steam-space above, or part of said pipes below and part abovesuch water level, to prevent foaming.

From this description it will be seen that by thedisposition and shapeof the generators E catching in a gradual manner the action of theila-me and gases as they pass to the smoke-stack, first -giving a wideand easy passage to the flame, as it strikes them, and an abruptreliefto it at their tops, which prevents choking, a most eifectivcsteam-generating surface is obtained. lurthermore, and irrespective oftheir precise shape, by employing generators so arranged, and connectingthem by pipes F, extending outwardly, not only is the fire-boxbelow saidgenerators kept free and the water drawn, for the supply of 'saidgenerators, from the lowest and coldest portions of the boiler, andconveyed over the iire where it is hot, but by such attachment of thegenerators to the outer shell or .case below, while they are supportedabove through their upper pipes Gr by the crown-sheet, said generatorsare most effectually and securely stayed and held to their place. Inmaking them, too, with their pipes separate and detached the one fromthe other, not only is there safety, but greater facility andconvenience afforded for putting the boiler together, and, in case ofnecessary repair toany one or more of such gcrmrators, taking themapart.

what we here cla-im, and desire to .secure by Letters- Patent, is-v l.The arrangement, within the fire-box or chamber, of one or more seriesof inverted cones forming steam generators, and communicating with thebody of `'che boiler, substantially as specified. l

2. The arrangement of generators m the fire-box or chamber, separatelyconnected with the water-space above, or body of the boiler, hy pipespassing through the crown-sheet of said Chamber, and with the lowerportion of the \veter-jooket surrounding seid fire-box, by pipes runningthrough the jacket and down or round the f outside thereof, essentiallyas shown und described.

GARDNER SYMMES, TIMOTHY W. HAYES.

Witnesses:

A. LE CLERC, J. W. Goonies.

MA xxl

